% nurikabe 291 by Oleg Andrushko, http://www.janko.at/Raetsel/Nurikabe/291.a.htm
nurikabe
easy+
18 10
.....1............
7.........7.....7.
.1.........7.....1
.......1..........
.....7............
7.....7.......7...
.1................
.......1.7........
.1................
.......1.......1.7
